Full term pregnancy redefined: Premature babies have higher rates of diseases – Study

By: Chioma Umeha

A new study has redefined full-term pregnancy and moved it to 39 and 41 weeks, just as the researchers noted that babies born in the early term have higher rates of respiratory, blood sugar and infection issues.
Doctors used to define 37 to 42 weeks as the time span of a full-term pregnancy. However, an online report Monday, said that a U.S. OB/GYN group has divided that range into different classifications after learning about critical differences in the final weeks of gestation.

According to the American College of Obstetricians and Gynecologists, the last few weeks of pregnancy have been divided into the following new groups: 37 to 39 weeks – ‘Early term’ ; 39 to 41 weeks – ‘Full term’ ; 41 to 42 weeks – ‘Late term’ and 42 weeks or more – ‘Post term.’

Premature Babies
“These new categories make sense because of research supporting the differences in infants at these various stages. Babies born in the early term have higher rates of respiratory, blood sugar and infection issues,” the report said. Infants born after the ‘early term’ period have been reported to have fewer problems with breathing, hearing and learning.

Why women may postpone an elective c-section
According to The American College of Obstetricians and Gynecologists, a baby’s lungs, brain and liver are among the last organs to fully develop. During weeks 35 to 39 of pregnancy, the baby’s brain grows by about one-third. Also, layers of fat develop under the baby’s skin to keep the infant warm after birth.

A major importance of the new terminology is to inform women of the differences between the stages, which could make mothers-to-be to reconsider induced labour after week 37 because they think it has been a full-term pregnancy.

It is also important for doctors to use this information to easily communicate the risks of giving birth before week 37 when it is not medically necessary. The importance of changing the wording is to give doctors a way to externally validate the differences in time ranges to women. As doctors, we’re sympathetic when it comes to women in the late stages of pregnancy, and women usually think there are no benefits to put off the birth after week 37, resulting in induced labour or c-sections.

These new, more precise definitions of pregnancy are now the standard of care, it’s important for physician groups to spread the word to their patients.

This story was published in Newswatch Times on November 14,  2013.


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